<template>
  <view class="my-settle-container">
    <!-- 全选 -->
    <label class="radio" @click="changeAllState">
      <radio color="#C00000" :checked="isFullCheck" style="transform:scale(0.7)" />
      <text>全选</text>
    </label>

    <!-- 合计 -->
    <view class="amount-box">
      合计:
      <text class="amount">￥{{ checkGoodsAmount }}</text>
    </view>

    <!-- 结算按钮 -->
    <view class="btn-settle" @click="settlement">结算({{ checkCount }})</view>
  </view>
</template>

<script>
import { mapGetters, mapMutations, mapState } from 'vuex'

export default {
  name: 'my-settle',
  data() {
    return {
      // 倒计时的秒数
      seconds: 3,
      // 定时器的 id
      timer: null
    }
  },
  computed: {
    ...mapGetters('m_cart', ['checkCount', 'total', 'checkGoodsAmount']),
    ...mapGetters('m_user', ['addstr']),
    ...mapState('m_user', ['token']),
    ...mapState('m_cart', ['cart']),
    isFullCheck() {
      return this.checkCount === this.total
    }
  },
  methods: {
    ...mapMutations('m_cart', ['updateAllGoodsState']),
    ...mapMutations('m_user', ['updateRedirectInfo']),
    changeAllState() {
      this.updateAllGoodsState(!this.isFullCheck)
    },
    // 用户点击了结算按钮
    settlement() {
      // 判断是否有勾选商品
      if (!this.checkCount) return uni.$showMsg('请选择要结算的商品！')

      // 判断是否有选中收货地址
      if (!this.addstr) return uni.$showMsg('请选择收货地址！')

      // 判断用户是否登录
      // if (!this.token) return uni.$showMsg('请先登录！')
      if (!this.token) return this.delayNavigate()

      this.payOrder()
    },
    async payOrder() {
      // 1. 创建订单
      // 1.1 组织订单的信息对象
      const orderInfo = {
        // order_price: this.checkGoodsAmount,
        order_price: 0.0,
        conconsignee_addr: this.addstr,
        goods: this.cart
          .filter(x => x.goods_state)
          .map(x => ({
            goods_id: x.goods_id,
            goods_number: x.goods_count,
            goods_price: x.goods_price
          }))
      }

      // 1.2 发起请求创建订单
      const { data: res } = await uni.$http.post('/my/orders/create', orderInfo)

      // if (res.meta.status !== 200) return uni.$showMsg('创建订单失败！')

      // 1.3 得到服务器响应的 “订单编号”
      // const orderNumber = res.message.order_number
      const orderNumber = 'GD20180504000000000045'

      // 2. 订单预支付
      // 2.1 发起请求获取订单的支付信息
      const { data: res2 } = await uni.$http.post('/my/orders/req_unifiedorder', {
        order_number: orderNumber
      })

      // 2.2 预付订单生成失败
      // if (res2.meta.status !== 200) return uni.$showMsg('预付订单生成失败！')

      // 2.3 得到订单支付相关的必要参数
      // const payInfo = res2.message.pay
      const payInfo = {
        timeStamp: '1525681145',
        nonceStr: 'BkPggorBXZwPGXe3',
        package: 'prepay_id=wx071619042918087bb4c1d3d72999385683',
        signType: 'MD5',
        paySign: 'D1642DEEF1663C8012EDEB9297E1D516'
      }

      // 3. 发起微信支付
      // 3.1 调用 uni.requestPayment() 发起微信支付
      const [err, succ] = await uni.requestPayment(payInfo)
      // 3.2 完成支付
      // if (err) return uni.$showMsg('订单未支付！')
      // 3.3 完成了支付，进一步检查支付的结果
      const { data: res3 } = await uni.$http.post('/my/orders/chkOrder', {
        order_number: orderNumber
      })
    // 3.4 检测到订单支付
    // if (res3.meta.status !== 200) return uni.$showMsg('订单未支付！')
    // 3.5 检测到订单支付完成
    uni.showToast({
      title: '订单支付完成！',
      icon: 'success'
    })
    },
    // 延时导航到 my 页面
    delayNavigate() {
      // 重置秒数
      this.seconds = 3
      this.showTips(this.seconds)

      this.timer = setInterval(() => {
        this.seconds--
        this.showTips(this.seconds)
        if (this.seconds <= 0) {
          // 清除定时器
          clearInterval(this.timer)

          // 跳转页面
          uni.switchTab({
            url: '/pages/my/my',
            success: () => {
              this.updateRedirectInfo({
                openType: 'switchTab',
                from: '/pages/cart/cart'
              })
            }
          })
        }
      }, 1000)
    },
    // 展示倒计时的结算消息
    showTips(n) {
      uni.showToast({
        icon: 'none',
        title: '请登录后再结算！' + n + '秒之后自动跳转到登录页',
        mask: true,
        duration: 1500
      })
    }
  }
}
</script>

<style lang="scss">
.my-settle-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50px;
  font-size: 14px;
  background-color: #fff;
  padding-left: 5px;

  .radio {
    display: flex;
    align-items: center;
  }

  .amount-box {
    .amount {
      font-weight: bold;
      color: #c00000;
    }
  }

  .btn-settle {
    min-width: 100px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    padding: 0 10px;
    background-color: #c00000;
    color: #fff;
  }
}
</style>
